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Tri-state Expand/Collapse

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Gifer
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Gifer asked on 08 Nov 2012, 07:15 PM
Hi,

I'm implementing a treeview that uses a HierarchicalDataTemplate to bind to a collection. The structure looks like this

- Parent
      + Child
      - GrandChild
            GrandGrandChild
            GrandGrandChild

What I would like to achive is a tri-state expand/collapse feature.
The workflow is the following:

    1 - The user clicks on a Parent node once and it will expand it an show the Children nodes
    2 - The user clicks on that Parent node again (second time) and it will expand all Children and GrandChildren nodes
    3 - The user click on that Parent node again (third time) and it will collapse all the GranChildren and Children nodes.
The Expander UI should look like this:
    
    1 State Node Expanded - A green arrow with a black border pointing to the East (after first click)
    2 State Node Expanded All- A green arrow with a black border pointing to the South-East (after the second click)
    3 State Node Collasped- A white arrow with a black border pointing to the East (after the third click)

I wonder if this is all possible and any help would be really appreciated.

Thanks

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Gifer
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answered on 09 Nov 2012, 12:18 AM
Nevermind, I was able to achive this by myself. Thanks.
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